KR101082704B1 - Locking mechanism for a vehicle seat - Google Patents

Abstract

The invention relates to a locking device 1, in particular a locking device for a vehicle seat. The locking device is provided with a housing (3) with a base plate (5), a latch (11) disposed in the housing (3) and pivotally mounted and latched together with the mating member (B), and the housing (3). It is also disposed at and pivotably mounted and includes, by interaction with the latch 11, one or more pivotally mounted fastening elements 25, 27 that lock the locked state.

The present invention is characterized in that the base plate (5) consists of a panel and / or a cover on its outer side.

Description

LOCKING MECHANISM FOR A VEHICLE SEAT}

The invention relates to a locking device, in particular a locking device for a vehicle seat having the features of the preamble of claim 1.

In the case of a known locking device of this type, the latch and two securing elements are arranged in a substantially closed metal housing. The housing is covered by a plastic panel fastened to the vehicle seat or structural part of the vehicle and clipped onto the outer surface of the baseplate.

The object of the invention is to improve the locking device of the type mentioned above. This object is achieved by a locking device with the features of claim 1 of the invention. The dependent claims are a beneficial improvement.

Due to the fact that the outer side of the baseplate is designed with panels and / or sheaths, the separately designed panels need to be assembled to prevent the technically useful parts and open cavities from being visible and to hide them behind the panels. none. This reduces the number of parts required, simplifies installation and reduces cost, and eliminates the need for clipping of panels. In addition, product lifespan is increased and the interface between components is unnecessary. The outer side should be understood to mean the visible side of the baseplate, which is the opposite side of the structure to which the locking device is to be fastened.

In a preferred embodiment, if the baseplate is formed of plastic, the baseplate can be applied to the function of the panel in a particularly simple and cost effective manner for the needs and the requirements of the customer. However, the baseplate may also be made of other moldable soft materials, for example brushed aluminum. If reinforcement is required, the baseplate may have an insert made of a higher strength material, preferably an insert made of steel encapsulated by plastic, for example by injection molding. As a further reinforcement, a coupling plate can be located on the support member for the latch and the fastening member. In order to improve the panel function, the (visible) outer face of the plate is designed with a visible surface, ie embossed to make it more visually appealing than technically useful outer skins in terms of coloration, shape and surface structure. And / or colored and / or painted.

The housing preferably has sidewalls protruding from the baseplate, the sidewalls being preferably integrally formed, spaced from the edge of the baseplate and offset inwards, the area predetermined by the latches in a way that is conserved on the construction space. It encloses the fixing member and the area pivoted thereon, and the baseplate can be matched to the application shape, for example generally rectangular. Therefore, the area between the edge of the baseplate and its sidewalls is only used to improve the panel function of the baseplate.

In a preferred embodiment, the housing is of a half-open design and the structure to which the locking device is fastened closes the housing. After all, no individual leads need to be provided, which saves material, weight and structure space, and in particular avoids unnecessary overlapping of the materials. Preferably a locking device already feasible, testable and often open toward one side for normal use is attached to the structure to obtain the full strength, in particular with respect to the load, in the event of a collision. At the same time, the parts in the locking device are protected from damage and foreign matter by the housing being closed.

The support member for the latch and the fastening member can be provided on a housing, or on a separately formed support plate, for example as a lead type, which closes the housing.

In the case of a locking device with increased locking reliability and increased load bearing capacity in the event of a collision, the clamping eccentric and the blocking part are provided as fastening members, with the spring loading clamping eccentric being locked by a closing moment. In the state it acts on the latch and the blocking part supports the latch in the event of a collision.

The locking device according to the invention can be used from a different point of view of the vehicle seat, for example as a backrest rock for connecting the entire vehicle seat to the floor or for fastening the backrest to the vehicle structure, The locking device is attached to the structure fixed on the seat structure or to the structure fixed on the vehicle structure and the mating element is correspondingly fixed to the vehicle structure or the seat structure. The locking device may also be integrated in the articulated assembly provided in order to set the inclination of the backrest, in particular if one of the fitting parts has to be designed as a hollow box.

The invention is described in more detail with reference to exemplary embodiments and variations described in the figures below.

1 is a side view showing a typical embodiment of the inner side,

2 is a side view showing a typical embodiment of the outer side,

3 is a plan view illustrating an exemplary embodiment,

4 is an exploded view showing a typical embodiment;

5 is a cross sectional view through a variation of an exemplary embodiment.

The locking device 1 is provided for releasably connecting the back of the vehicle seat to the vehicle structure of the vehicle, but can also be used to connect the vehicle seat to the floor or as a hood or tailgate lock. The locking mechanism 1 has a half-open plastic housing 3, the housing being flat to the outer side, generally rectangular, perpendicularly oriented in the direction of movement, and defining a base plate 5 defined below. ). The baseplate 5 may optionally be provided with an insert made of steel or other material which is injected into the baseplate 5 and which is more rigid than plastic. Protruding perpendicularly from the baseplate 5 is the sidewall 7, which is integrally formed with the baseplate 5 and spaced from the edge of the baseplate 5 with respect to the edge of the baseplate 5. It is offset inward and surrounds a predetermined area by the parts described below. The bolt receptacle 9 is formed on one longitudinal side of the housing 3, and the bolt receptacle is provided to receive a bolt B, or another mating member, which is opened outward and fixed to the vehicle structure. In this case, the width of the bolt receptacle 9 is larger than the diameter of the bolt B to correct the error. The mating member may also be a section of the clip.

The latch 11 is pivotally mounted on the first support member 13 protruding from the base plate 5 parallel to the side wall 7, integrally formed on the housing 3, or as a separately formed bolt, It is connected to the housing 3. In order to fasten the locking mechanism 1, the first support member 13 is preferably made of a hollow design. For interaction with the bolt B, the latch 11 has a hook mouse 15, which hook bolt intersects with the bolt receptacle 9 at least approximately vertically with the locking mechanism 1 locked. Close the receptacle and, in the open state, allow the bolt receptacle 9 to open.

Parallel to the baseplate 5 and parallel to the pivoted plane of the latch 11, the coupling plate 17 is pushed onto the first support member 13 and the first support member 13 is preferably coupled It has a stopping step while the ring plate 17 is continuously pushed. On the side of the coupling plate 17 facing away from the latch 11, a first torsion spring 18 acting on the latch 11 by an opening moment is arranged on the first support member 13. The first plastic retaining ring 19, like the coupling plate 17, is pushed from the open end of the first bearing element 13, in particular pressed. The first stop ring 19 fixes the latch 11 in the axial direction. The flange is integrally formed on the first stop ring 19 on the side facing away from the latch 11.

Basically, the second support member 23 of the same design is integrally formed on the housing 3 or connected to the housing at a certain distance from the first support member 13. The blocking component 25 is pivotally mounted on the second supporting member 23 and is disposed in the direction of the latch 11 by a second torsional spring 26 disposed between the base plate 5 and the blocking component 25. Is subjected to compressive stress. On this side of the blocking part 25 facing away from the baseplate 5, the clamping eccentric 27 is mounted on the second support member 23 and is subjected to compressive stress by the third torsion spring 28. And acts on the latch 11 in the locked state by the closing moment, and eventually the latch is held in engagement with the bolt B. FIG.

Corresponding to the first support member 13, the coupling plate 17 is pushed onto the second support member 23, preferably the second support member 23 also has a stopping step. The insertion of the third torsion spring 28 causes the second stop ring 29 to be pushed from the open end onto the second support member 23 and the coupling plate 17, in particular pressurized, the second stop ring being It is similar to the first stop ring 19, ie it also has a flange made of plastic and formed integrally. The second stop ring 29 secures the clamping eccentric 27 and the blocking part 25 in the axial direction.

Under normal circumstances, the blocking component 25 is arranged at a distance from the latch 11. When there is a collision, when the latch 11 receives an open moment and presses the clamping eccentric 27 away, the latch 11 bears against the blocking part 25, which blocks the latch 11. Support and prevent the latch from opening. In order for the locking mechanism 1 to be released, the blocking part 25 is separated from the latch 11 in a manner known per se, for example via an integrally formed release bolt, lever or Bowden cable. If it is pivoted and suitable after a small empty stroke, the blocking member is conveyed along the clamping eccentric 27 using an actuator formed integrally. The latch 11 is then no longer secured and is supported by the blocking component 25 in a state where it is pulled upward by the first torsion spring 18 and released. The clamping eccentric 27 and the blocking part 25 are thereby fastening members for the latch 11 in both the locked state and the open state.

With the above-mentioned parts, the locking mechanism 1 is already operated in normal use, that is, even if the housing 3 is still open, it forms a testable unit. In the event of a collision, in order to obtain the full strength, the structure to which the locking mechanism 1 is fastened mainly reinforces the bearing point at the same time as closing the housing 3, and the structure at the ends of the support members 13 and 23. Support against

According to the invention, the baseplate 5 not only acts to form the housing 3 but also serves as a cover for the panel and the outer side at the same time. For this purpose, depending on the application and the requirements of the customer, the housing 3 is embossed or in some other way, in the area of the outer face which is woven, painted or designed in particular into the visible surface of the baseplate 5, Any desired combination of these can be painted or designed. Depending on the load requirements, the housing 3 may be provided without insertion and / or consist of a plurality of plastic parts, resulting in the working area (bearing point) having a different configuration from the panel and cover area.

In the same-and not described-variant of the typical embodiment, instead of the coupling plate 17 and the stop rings 19 and 29, the locking mechanism 1 'is provided with a support plate 17' and the support plate is It is formed separately from the housing 3 and the support members 13 and 23 are fastened, for example pressed inwards. At the same time, the support plate 17 ′ closes the housing 3 in the manner of a lead. The housing 3 with baseplate 5 then no longer has a supporting function, but rather a panel and cover function.

Reference List

1, 1 ': locking device 3: housing

5 base plate 7 side wall

9: bolt receptacle 11: latch

13: first supporting member 15: hook mouse

17 coupling plate 17 'support plate

18: first torsion spring 19: first stop ring

23: second support member 25: blocking part

26: second torsion spring 27: clamping eccentric

28: 3rd torsion spring 29: 2nd stop ring

B; Bolts, mating members

Claims (13)

A housing 3 having a base plate 5, A latch 11 disposed in the housing 3 and pivotally mounted, intended for locking purposes with the mating member B, and One or more fastening members 25, 27 disposed in the housing 3 and pivotally mounted to secure the locked state by interaction with the latch 11. In a lock device for a vehicle seat, comprising: The outer side of the baseplate 5 is designed as at least one of a panel and a lid and Characterized in that the housing has a side wall (7) protruding from the base plate (5), spaced apart from the edge of the base plate (5) and inwardly offset (inward), Lock for vehicle seats. The method of claim 1, Characterized in that the base plate 5 is formed of a flexible material, Lock for vehicle seats. The method of claim 2, The flexible material is characterized in that the plastic, Lock for vehicle seats. The method of claim 2, The baseplate 5 is characterized in that it has an insert made of a rigid material having a greater rigidity than the flexible material, Lock for vehicle seats. The method of claim 4, wherein The rigid material is characterized in that the steel (steel), Lock for vehicle seats. The method of claim 1, Characterized in that the outer surface of the baseplate 5 is treated with at least one of being embossed, colored, and painted, Lock for vehicle seats. delete The method of claim 1, Characterized in that the baseplate 5 and the side wall 7 are designed in a single piece, Lock for vehicle seats. The method of claim 1, The side wall 7 surrounds an area predetermined by the latch 11 and the fixing members 25 and 27, and the base plate 5 is rectangular in shape. Lock for vehicle seats. The method of claim 1, The housing 3 is characterized by having at least two bearing elements 13, 23 for the latch 11 and the fixing members 25, 27, on which the coupling plate 17 is arranged. Made, Lock for vehicle seats. The method of claim 1, The housing 3 is of a half-open design, characterized in that the structure to which the locking device 1 is fastened closes the housing 3, Lock for vehicle seats. The method of claim 1, Characterized in that two or more support members 13, 23 for the latch 11 and the fixing members 25, 27 are provided on a support plate 17 ′ formed separately from the housing 3, Lock for vehicle seats. The method according to any one of claims 1 to 6 and 8 to 12, Clamping eccentric 27 and intercepting component 25 are provided as fixing members 25, 27, The clamping eccentric 27, which is a spring loaded clamping eccentric, acts on the latch 11 in the locked state by a closing moment and the blocking part 25 opens the latch 11 when there is a collision. Characterized by supporting, Lock for vehicle seats.

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